Harmonsburg Pennsylvania Climate Data

Monthly Average Climate Data for Harmonsburg Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.3 °F33.2 °F3.71 in.
February17.4 °F35.7 °F2.57 in.
March24.8 °F44.5 °F3.27 in.
April35.5 °F58.0 °F4.04 in.
May46.1 °F69.3 °F4.05 in.
June55.0 °F77.2 °F4.98 in.
July59.2 °F81.1 °F4.79 in.
August57.6 °F79.5 °F4.09 in.
September51.1 °F73.3 °F4.49 in.
October40.9 °F61.3 °F4.21 in.
November32.0 °F48.9 °F3.55 in.
December23.9 °F38.0 °F3.82 in.
Annual38.4 °F58.3 °F47.57 in.

Climate Data for Harmonsburg Pennsylvania

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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